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Grounding types of electrical installations

There are two types of grounding electrical installations - it is working and protective. These types of grounding have their own functionality. So working grounding provides normal operating conditions for electrical installations.

Dangerous voltage can appear on any metal structures, pipes, fences, housings. Dangerous voltage may also appear as a result of breakdown of wire insulation, current leakage through insulation, electrostatic discharges, lightning. The work of protective grounding is to remove dangerous voltage from metal structures to the ground and create a leakage current from grounded areas and turn off the power grid.

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